Remove tripleo-test-cloud-rh2 from nodepool

We haven't launched jobs on tripleo-test-cloud-rh2 is some time, so
remove it from nodepool to stop images uploads.

Change-Id: Id34fc595821778d1180579ff93768e9180f20f67
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

nodepool/nodepool.yaml

@@ -722,24 +722,6 @@ providers:
         username: jenkins
         private-key: /home/nodepool/.ssh/id_rsa
         config-drive: true
-  - name: tripleo-test-cloud-rh2
-    region-name: 'regionOne'
-    cloud: tripleo-test-cloud-rh2
-    boot-timeout: 120
-    max-servers: 0
-    rate: 0.001
-    clean-floating-ips: true
-    networks:
-      - net-label: private
-    template-hostname: '{image.name}-{timestamp}'
-    images:
-      - name: centos-7
-        min-ram: 6144
-        name-filter: undercloud
-        diskimage: centos-7
-        username: jenkins
-        private-key: /home/nodepool/.ssh/id_rsa
-        config-drive: true
   - name: infracloud-vanilla
     region-name: 'RegionOne'
     cloud: infracloud-vanilla